Abstract The need for the separation of azeotropic mixtures for the production of high-end chemicals and resource recovery has spurred significant research into the development of new separation methods in the chemical industry. In this paper, a green and sustainable method for azeotrope separation is proposed based on a chemical-looping concept with the help of reversible-reaction-assisted distillation. The central concept in the chemical-looping separation (CLS) method is the selection of a reactant that can react with the azeotrope components and can also be recycled by the reverse reaction to close the loop and achieve cyclic azeotrope separation. This paper aims to provide an informative perspective on the fundamental theory and applications of the CLS method based on the separation principle, reactant selection, and case analysis, for example, the separation of alkenes, alkane, aromatics, and polyol products. In summary, we provide guidance and references for chemical separation process intensification in product refining and separation from azeotropic systems for the development of a more sustainable chemical industry.

中文翻译：

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化学环概念在共沸物分离中的应用

摘要 共沸混合物分离用于生产高端化学品和资源回收的需求促使对化学工业中开发新分离方法的重要研究。在本文中，基于化学循环概念，借助可逆反应辅助蒸馏，提出了一种绿色且可持续的共沸分离方法。化学回路分离（CLS）方法的核心概念是选择一种反应物，它既可以与共沸组分反应，也可以通过逆反应循环以闭合回路，实现循环共沸分离。本文旨在基于分离原理、反应物选择和案例分析，为 CLS 方法的基本理论和应用提供信息视角，例如，烯烃、烷烃、芳烃和多元醇产品的分离。总之，我们为产品精炼和共沸系统分离的化学分离过程强化提供指导和参考，以发展更可持续的化学工业。